TBI and Turbo?

[Anlushac11]

8)

Al mentioned in another thread that you could get a megasquirt setup for less than $200. I thought they were over $800 so thats why I never considered one.

What about using a TBI, and a megasquirt, with a blow through turbo setup?

TBI uses high enough fuel pressure that it should not be a problem with a turbo and 14-16 lbs of boost. You would have to find a way to enrich the mix when boost comes on. A hobbs switch in intake so the computer can detect boost and richen up the mix?

I have a 1984 Thunderbird Turbo Coupe 2.3L EFI turbo motor that is set to run 14lbs of boost and it does not use an intercooler. I would think that an Oz head or Crossflow head with a 4bbl intake and a TBI and turbo could make some killer power.

 

[Anonymous]

i was just into it , but i cant get a complete megasquirt !!!!! where to buy ? the url seems not working here !

got a complete tbi system with 2 trottle bodys ! gone try a sugh trough turbo system , with liquid gas ! with the tbi system !!

got almost al the parts for my stupid idee, only missing the mega comp.i want a complete and tested mega comp , but the url on the site seems dead !!!!

 

[StrangeRanger]

Depending on how the fuel supply system on a CFI/TBI works, you may not want a Hobbs switch. if there is a fuel pressure regulator similar to the one used on the MFI and SEFI systems then a boost sensing regulator from Vortech or some such might give you a proportional linear increase rather than a two-stepped one.

 

[Anlushac11]

8)

Remember Im a EFI noob so I am not up on the tech.

I know what you are talking about with fuel pressure regulators that you run boost to and they raise fuel pressure.

Does a CFI or EFI system use a regulator like that? I thought they just used a high line pressure of 30-45 lbs and changed the opening height and width of the pulse of the injector. And using means Im not aware of when the computer receieves data of boost pressure it just increases the width of the injector pulse.

 

[Anonymous]

some give me a tip ? where to buy a mega comp? i cant get it in the mega site url, it,s dead the link !
otherwhise is there are simmuler type of comp on the market for sale ?
1 that you can program with a laptop ?
i got al my stuf ready for putin , only needing a comp , did want to buy the holley setup 2 barrel , but i did reed that he comp CANT be programd manuel with a laptop ?
i realy needing a complete ore only the comp for my setup , the holley is a great system , i think would be working great for the 800$ but it is not programd manuel ?
are the other aftermarket efi systems for about the same money , that you can program manuel with a laptop ?
need a little help , did see a kit , the same like jack got in his car , gone ask if i can use it with my setup [ dura ll /msd6 / mallory coil / ]

 

[Anlushac11]

some give me a tip ? where to buy a mega comp? i cant get it in the mega site url, it,s dead the link !
otherwhise is there are simmuler type of comp on the market for sale ?
1 that you can program with a laptop ?
i got al my stuf ready for putin , only needing a comp , did want to buy the holley setup 2 barrel , but i did reed that he comp CANT be programd manuel with a laptop ?
i realy needing a complete ore only the comp for my setup , the holley is a great system , i think would be working great for the 800$ but it is not programd manuel ?
are the other aftermarket efi systems for about the same money , that you can program manuel with a laptop ?
need a little help , did see a kit , the same like jack got in his car , gone ask if i can use it with my setup [ dura ll /msd6 / mallory coil / ]

I found this:

http://bgsoflex.com/megasquirt.html

I think Jack was using a SDS system.

http://www.sdsefi.com/
Hope it helps

 

[Anlushac11]

8)

And I had another question.

If I decide to go with a TBI system, do you program the computer based on how many squirters the TBI has?

For instance a Holley 4bbl carb has 2 primary and depending on the model 2 secondary jets(or a metering ppalte with the right orifices)

Im not 100% sure if the TBI is counted as one unit or if the squirters in the TBI are counted individually?

I have seen 1, 2, and 3 squirter TBI's. Dont remember ever seeing a 4 squirter TBI.

 

[addo]

I've got one. Weber style; two 50mm butterflies.

 

[xctasy]

Like this one here :arrow: http://www.geocities.com/falconracing/convert.htm

http://www.geocities.com/falconracing/con2.jpg

 

[Anonymous]

Could the Megaquirt be tuned to reconize 6 injectors, for one in each intake runner? I'm starting to like the idea of EFI.

 

[Anlushac11]

8)

Yes. You have to tell it how many cylinders, volumetric effeciency, number of injectors, and then it reads all the sensors and consults a table. It is a speed density system, but its a programmable system so you can tune it very easily.

 

[Anonymous]

Anlushac11 - are thinking about using one of these TBI units? I found this one at a local pick and pull for cheap.

I'm thinking of using either this turbo

or This turbo

DB

 

[Anonymous]

DBzOkole ! from what car is that unit , howmuch flow cfm ? i already did lookt for a tbi unit , but hard to get here , only see some V8 tbi units . dont now it they do with the cfm ? and from a chrysler V6 3 liter and 3,8 liter a complete mpi system , but i would like the tbi unit ! i can get tbi unit from a opel and reneault but i think the flow cfm is not good/ , but i,m getting a MS comp from AL . so i wil needing the wright sensors and stuf , so i now fore sure i got the minust problems after setup !

 

[Anonymous]

Harrie,

I got this from the junkyard and it was hidden in the trunk of a car with a 302 in it. I'm ASSUMING that the TBI was pulled from that 302. The cool thing is that it has the same mounting surface as the Holley 2300. ) I figure I can put this on the Argentine SP head with just the carb adapter The real question is how this TBI unit will like boost, I've had differing opinions so I'm still kinda on the fence.

I can usually find these Motorcraft TBIs at the yards, this is the best looking one I've seen(excuse the dirt) so I went ahead and bought it. It's gotten dusty after sitting a while. If/When I go again I'll see if I can find another one good piece.

Later man,
Dennis

 

[Anonymous]

The real question is how this TBI unit will like boost, I've had differing opinions so I'm still kinda on the fence.

No worries hometown.

http://w1.601.telia.com/~u60113742/my_v ... C01756.JPG

http://w1.605.telia.com/~u60505093/vett ... bi_mod.htm

He mentions in his website he bought two 90 # injectors. I'm sure you have to be badd azz at tuning the ECM as well, but doable I'm sure.

C-TOWN

 

[Anonymous]

www.thirdgen.org/techbb2/showthread.php ... ht=winaldl

Looks like we don't have to worry bout tuning :mrgreen:

...this program does it for you. It takes the information taken from WinALDL, a freeware PC program that collects data as you cruise around. It is a must in order to see what your engine system is doing.

Maybe with a bit of tweaking (ALDL connector) you can get it to work for your Ford applications.

C-TOWN

 

[xctasy]

Despite its major Design Fault (designed by GM!!!), the Delco Memcal/Calpac P4 computer is the 9" diff of the hop up industry.

It's bank fire, and even the Aussie 3.3 EI Commodore proved how easy is it is to massage the pulse widths to suit an in-line six.

Good stuff. Only thing is, must applications favor low-pressure turbos and twin table set-ups for N20. Chevy Offroad and Marine have used these for years. I'd love to see a full house turbo just using two or three TBI units and a Chevy calpc. Yummy!


Is there a Turbo in your Fords Future?

 

[Anonymous]

C-Town-Thanks for the links. Like I mentioned to you before, I'm really thinking about using a GM ECM from a V6. I just need to learn more about the technology.

Is there a Turbo in your Fords Future?

Execute - Yes, definitely turbo plans. I've been planning and planning for months. I still don't know which turbo to use. I'm gonna install the larger of the two and use whichever one is better for the application.

Cheers,
Dennis